Flushing tank



FIG. 1 is a front perspective view of a flushing tank showing my newdesign;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof and

FIG. 7 is a left side elevational view, the right side being a mirrorimage thereof.

The ornamental design for a flushing tank, as shown and described.